Mitsubishi GX Configurator-PT, Руководство пользователя

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MELSEC-Q
9 POSITIONING CONTROL
CHAPTER 9 POSITIONING CONTROL
This chapter details the positioning control (control functions using positioning data) of
the QD70.
9.1 Outline of positioning controls
"Positioning control" uses the "positioning data" stored in the QD70.
Position control, speed-position switching control and current value changing are
executed by setting the necessary items of these "positioning data".
As the control method of "positioning control", set the " Da. 2 Control method" setting
item of the positioning data.
Any of the following controls can be defined as "positioning control" depending on the
setting of " Da. 2 Control method".
Positioning control
Da. 2 Control method
Description
Position control (1-axis linear
control)
1-axis linear control (ABS)
1-axis linear control (INC)
Using the specified one axis, positioning control is
exercised from the starting point address (current stop
position) to the specified position.
Speed-position switching
control
Speed.Position Ctrl. (Forward)
Speed.Position Ctrl. (Reverse)
Speed control is first carried out, and the "speed-position
switching signal" is then turned ON to perform position
control (positioning control of the specified movement
amount).
Current value changing Current value changing
The current feed value (Md. 1 ) is changed to the address
set to the positioning address.
9.1.1 Data required for positioning control
The following table shows an outline of the "positioning data" configuration and setting
details required to carry out the "positioning controls".
Setting item Setting details
Da. 1 Operation pattern
Set how consecutive positioning data (example: positioning data No. 1, No. 2, No. 3 ...)
will be controlled. (Refer to Section 9.1.2.)
Da. 2 Control method Set the control method defined for "positioning control". (Refer to Section 9.1.)
Da. 3 ACC/DEC time
Set the acceleration/deceleration time for positioning control.
Da. 4 DEC/STOP time
Set the deceleration stop time for positioning control.
Da. 5 Command speed
Set the speed for exercising control.
Da. 6
Positioning address/
movement amount
Set the target value or movement amount for position control, or the movement amount
or new current value for position control of speed-position switching control. (Refer to
Section 9.1.3.)
Positioning dat
a
Da. 7 Dwell time
Set the time taken from when the workpiece has stopped on completion of position
control until the QD70 judges completion of position control.
The setting details of Da. 1 to Da. 7 vary with " Da. 2 Control method" in whether setting is required or not and details.
(Refer to "Section 9.2 Setting the positioning data".)
REMARK
•
10 pieces of the positioning data (positioning data No. 1 to 10) can be set per axis.
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